Wiper blade



FIG. 1 is a perspective view of a wiper blade showing my new design, the side not shown being identical to that illustrated;

FIG. 2 is an elevation view of either end thereof;

FIG. 3 is an elevation view of either end of a second embodiment of a wiper blade showing my new design; and,

FIG. 4 is a perspective view showing one side of the second embodiment it being understood that the opposite side is the same as the side of the first embodiment shown in FIG. 1. 

The ornamental design for a wiper blade, as shown and described. 